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GMT Flow Indicator with Alarm

GMT Metal Tube Flow Indicator with Alarm

GMT Flow IndicatorPlaton GMT metal tube flowmeters are magnetically coupled VA meters for gasses. Requiring no external power they are robustly constructed for heavy duty, with flanged connections on 1⁄2″ to 4″ line sizes, and screwed BSP connections on 1⁄2″, 1″ & 2″ units. Within the tapered flow tube, fluid flow lifts the metering element, which contains a magnet. The external pointer follows the magnetic field and indicates flow against a clear 150th scale. Standard units are calibrated for air or water, but scales can be produced to suit other fluids and process conditions.
The GMTA and GMTAA are Dual and Dual channel alarmed versions of the standard GMT, fitted with easily adjusted setpoints and indicators. Alarm transmission is provided by NAMUR type proximity sensors, which are approved for use in hazardous areas. Interface modules are available to provide relay outputs, and galvanic isolation for intrinsically safe applications.

For other gases, and for flow measurement at different temperatures and pressures, call Sales who will arrange a custom scale to your requirements. You will need to quote your fluid type, SG, viscosity, pressure, temperature and the units preferred.

*Gas ranges marked with an asterisk are Low Pressure Drop units, designed for applications such as Digester and Biological gas flows, or anywhere where pressure drop is critical.

  • Flow Rate : 5-16667 L/min
  • Operating Pressure : 100 BarG for Stainless Steel, 75 BarG for Brass (or as flange rating)
  • Operating Temperature : 200 ºC (or 50 ºC for low pressure drop models)
  • Accuracy : ±2% FSD
  • Wetted Materials : Stainless Steel or Brass
  • Float Material : Stainless steel, or PVC on Low pressure drop units
  • Guides : Stainless steel
  • Connections : Flanges DIN PN16 or Screwed BSP female
  • Overall Length : 250mm for 1/2″ to 2″ units
  • Flow Range : 10:1 typical, see tables
  • Protection : IP65
  • Flow Scale : 100mm long, 150th typical
  • Standard Conditions : 1.013bar & 20ºC (ATP)1
  • Installation : Vertical with flow upward
  • Sensor Type : DIN 19 234 (NAMUR)
  • Approval Code : EEx ia IIC T6
  • Sensor Connection : IP65 DIN connector/s
  • Power Supply : 115/230VAC or 24VDC models
  • Output : SPCO Relay, 2A @ 250VAC or 40VDC
  • Approval Code : [EEx ia]
  • Housing : 35mm DIN rail or screw fixing, IP20

Available for Air, Gas and Water

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